DE3889218D1 - Digital filter. - Google Patents

Digital filter.

Info

Publication number
DE3889218D1
DE3889218D1 DE3889218T DE3889218T DE3889218D1 DE 3889218 D1 DE3889218 D1 DE 3889218D1 DE 3889218 T DE3889218 T DE 3889218T DE 3889218 T DE3889218 T DE 3889218T DE 3889218 D1 DE3889218 D1 DE 3889218D1
Authority
DE
Germany
Prior art keywords
wdfs
implementations
stability
modified
digital filter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE3889218T
Other languages
German (de)
Other versions
DE3889218T2 (en
Inventor
Alfred Prof Dr Fettweis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Application granted granted Critical
Publication of DE3889218D1 publication Critical patent/DE3889218D1/en
Publication of DE3889218T2 publication Critical patent/DE3889218T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/0201—Wave digital filters

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Centrifugal Separators (AREA)
  • Dry Shavers And Clippers (AREA)
  • Complex Calculations (AREA)
  • Peptides Or Proteins (AREA)

Abstract

While wave digital filters (WDFs) can always be implemented by commercially available integrated digital signal processors (DSPs), the efficiency of such implementations leaves room for improvement. Modified forms of WDFs are therefore derived that yield DSP implementations much more efficient than those previously available. The approach is particularly suitable for lattice WDFs. The modified WDF-structures can be easily built in such a way that they possess all stability properties desired under signal quantization, thus not only absence of small- and large-scale limit cycles but even e.g. forced-response stability and related properties.
DE3889218T 1988-05-27 1988-05-27 Digital filter. Expired - Fee Related DE3889218T2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP88108525A EP0343278B1 (en) 1988-05-27 1988-05-27 Digital filter

Publications (2)

Publication Number Publication Date
DE3889218D1 true DE3889218D1 (en) 1994-05-26
DE3889218T2 DE3889218T2 (en) 1994-10-20

Family

ID=8199007

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3889218T Expired - Fee Related DE3889218T2 (en) 1988-05-27 1988-05-27 Digital filter.

Country Status (4)

Country Link
EP (1) EP0343278B1 (en)
JP (1) JPH0773189B2 (en)
AT (1) ATE104813T1 (en)
DE (1) DE3889218T2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002037676A1 (en) 2000-11-01 2002-05-10 Koninklijke Philips Electronics N.V. Adaptive line enhancer

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH575193A5 (en) * 1972-12-22 1976-04-30 Siemens Ag
DE3314647A1 (en) * 1983-04-22 1984-10-25 Siemens AG, 1000 Berlin und 8000 München WAVE DIGITAL FILTERS USING BRIDGE WAVE DIGITAL FILTERS
JPS60105313A (en) * 1983-08-18 1985-06-10 ア−・エヌ・テ−・ナツハリヒテンテヒニ−ク・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング Time separable variable equalizer

Also Published As

Publication number Publication date
JPH0773189B2 (en) 1995-08-02
DE3889218T2 (en) 1994-10-20
ATE104813T1 (en) 1994-05-15
EP0343278B1 (en) 1994-04-20
EP0343278A1 (en) 1989-11-29
JPH0226120A (en) 1990-01-29

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee